RAPID AUDIOGRAM DETERMINATION USING EVOKED RESPONSES

虽然使用听性脑干反应(ABR)进行听力评估 已经成为一种常规测试，目前的临床程序使用点击 ABR刺激只能粗略估计听力。频率 具体的测试程序太长，不能应用于新生儿和 婴儿人口，最需要详细说明的人口 听力评估。为了获得ABR听力图(4- 门限频率测试)、快速ABR捕获系统 配备了频率特定刺激的自动生成和 应该设计快速检测阈值反应的方法。对于最大 有效性，该设备应该为临床医生提供高质量的 类似于在标准临床实践中使用的记录 耗时的程序。该项目旨在开发一种设备，该设备 满足临床大规模筛查和检测的需要 智能信号处理技术对采集和处理过程的影响 识别ABR反应以确定听力构型 很难测试种群。 在这个项目中，我们建议开发ABR信号采集和 处理方法将显著减少采集时间，因为 以及在产生定量测量的同时人工产物的影响 包括测试频率的延迟-强度函数。这些 方法将导致开发一种自动化EP系统，该系统 将使我们能够在一段时间内获得临床可用的ABR听力图 适合用作大批量筛选和检测设备的框架。 建议的快速听力测定方法将使临床医生能够 为了更好地评估婴儿的听力状况，以便康复， 治疗和教育干预。因此，拟议的设备将 在听力保健方面找到直接的商业应用。

Although hearing evaluation using the Auditory Brainstem Response (ABR) has become a routine test, current clinical procedures employing click stimuli with ABR yield only a rough estimate of hearing. Frequency specific test procedures are too lengthy to be applied to newborn and infant populations, the populations who are in most need of detailed hearing evaluation. In order to obtain an ABR audiogram (a four- frequency test of threshold), fast ABR acquisition systems that are equipped with automated generation of frequency specific stimuli and rapid detection of threshold responses should be devised. For maximum effectiveness, the device should provide clinicians with high quality recordings similar to those obtained in standard clinical practice using time-consuming procedures. This project aims at developing a device that meets the clinical needs of mass screening and testing by applying intelligent signal processing technology to the process of acquiring and identifying ABR responses for determination of hearing configuration in difficult to test populations. In this project, we propose to develop ABR signal acquisition and processing methods which will significantly reduce acquisition time as well as the effects of artifacts while yielding quantitative measures including latency-intensity functions for the frequencies tested. These methods will result in the development of an automated EP system which will enable us to obtain a clinically usable ABR audiogram in a time frame suitable for use as a mass screening and testing device. The proposed rapid audiogram determination methods will enable clinicians to better evaluate the hearing status of infants for rehabilitative, therapeutic and educational intervention. Thus, the proposed device will find an immediate commercial application in hearing health care.